The image shows a ship using sonar to locate a school of fish. Which data are used to determine the distance of the ship from the fish?

A. The amount of time it takes the sound waves to travel to the fish and back to the boat

B. The number of sound waves the ship emits

C. The amount of time it takes the sound waves to travel from the boat to the fish

D. The number of sound waves that bounce off the fish

Answers

Answer 1

Answer:

Explanation:

The distance of the object that reflected the sound wave can be calculated by knowing the speed of sound in water and the time interval between transmission and reception of ultrasound.20 Mar 2017

Answer 2

The answer is A. The amount of time it takes the sound waves to travel to the fish and back to the boat

Related Questions

Why are Sea Otters considered a keystone species?

Answers

Answer:

Sea otters are considered a "keystone species" because they can exert top-down pressure via predation on sea urchins, which are grazers upon kelp.

Explanation:

As urchin density decreases from sea otter predation, so does the grazing pressure on kelp and as a result kelp forests flourish in the presence of sea otters.

Sea otters are a "keystone species" which means that they can exert top-down pressure via predation on sea urchins, which are grazers upon kelp. As urchin density decreases from sea otter predation, so does the grazing pressure on kelp and as a result kelp forests flourish in the presence of sea otters.

light traveling through air encounters a second medium which slows the light to 100,000 miles/second. What is the index of the second medium?

Answers

Answer:

300000 hope it is help full

Explanation:

300000

Answer 3000

Explanation:
The formula is n= c/v, “n” means index, “c” means speed of light in vacuum and “v” means speed of light in the material

explain why the rocket can move at constant speed in outer space.

Answers

Answer:

When the rocket's engines are fired up, the force of gravity is disturbed, and the rocket takes off in the air. Later, as the rocket's fuel runs out, it slows down, comes to a halt, and eventually plummets to Earth's surface. Forces can affect objects in space as well. Spaceships are constantly in motion while traversing the solar system.

Explanation:

Please read!

Answer:

Explanation:

The rocket works because of the law of conservation of linear momentum. The law of conservation of linear momentum is very important in physics. Momentum is defined as the mass of an object times its velocity.

A student wants to design an investigation to determine if an object has potential energy. What are some questions the student could ask to determine if the object contains potential energy? (Select 2)

Does the object have kinetic energy?

Does the object move when it is released from a rest position?

Does work have to be done to hold the object in place?

Does a force act on an object?

Is the object part of a system?

(i had another attempt, and 2 and 5 were innocent)

Answers

Response... Option 1 & 4

Question 1 and he could ask the position of the object because potential energy is an energy due to the object’s position

Which statement tells a result of the big bang?

Galaxies are moving farther away.

Galaxies are moving randomly.

Galaxies are moving closer.

Galaxies are stationary.

Answers

Answer:

Explanation:

Galaxies are moving closer

the galaxies are moving farther away from each other

which option do you think could cause near sightedness?
a) the eye lens doesn't refract light
b)the eye lens is concave
c)the eyeball is too long
D)the retina cells aren't reactive to light

Answers

Answer:A

Explanation:because it doesn’t refract light so you can’t see close

Answer:

A) the eye lens doesn't refract light

Explanation: because the eye doesn’t refract, or bend, light properly to focus on the retina. Makes eyesight appear blurry and distorted.

Middle school science: Do folded mountains form when 2 continental plates push against each other? (you can just answer yes or no)

Answers

Answer:

Yes

Explanation:

When tectonic plates push against each other, folded mountains can form

Yes. When two continental plates push up against each other, it’s forms mountains from the land being pushed together.

Which of the following are functions of the skin? help pls

I. It protects the body
II. It help the body keep its balance
III. It helps the body cool down by releasing heat
IV. It collects information from the surroundings

A. I and II
B. II and III
C. I, II, and III
D. I, III, and IV

Answers

c i beleive is the correct answer

Explanation:

The answer is c I believe

Explain how water is controlled to generate electrical energy in hydro-electric dams. and show a diagram is help explain the answer.

Answers

Here is how I would I explain it. Water is channeled through tunnels in the dam. The energy of water flowing through the dam’s tunnels cause turbines to turn. The turbines make generators move. Generators are machines that produce electricity. Engineers control the amount of water let through the dam. The process used to control this flow of water is called the intake system.

Hope this helps can’t do the diagram part.

Near the bottom of the dam wall there is the water intake. Gravity causes it to fall through the penstock inside the dam. At the end of the penstock there is a turbine propellor, which is turned by the moving water. The shaft from the turbine goes up into the generator, which produces the power.Jun 6, 2018

Can I pass 6th grade with these grades:
ELA: 50.8%
History: 25.6%
Math: 60%
Science: 91.3%

Answers

Answer:

You can't

Explanation:

I'm sorry but with a 25% and a 50% it's not enough. Hope this helps you out and your teachers are nice enough to work with you.

Imagine that a plant switches its habitat. Draw the new plant and label the new adaptive features that the plant should have in the new habitat to survive. Upload the image of the new plant drawn . Give your plant a suitable name

Answers

...growing lower and closer to the ground to shield themselves from wind and cold.

growing lower and closer to the ground to shield themselves from wind and cold.

Can someone answer this

Answers

D I know that from forensics class

Science
(Electromagnetic waves)
Describe what happens when each type of the 7 waves encounters our planet?

Answers

when a light wave encounters an object, they are either transmitted,reflected,absorbed,refracted,diffracted, or scattered depending on the wave

Light waves across the electromagnetic spectrum behave in similar ways. When a light wave encounters an object, they are either transmitted, reflected, absorbed, refracted, polarized, diffracted, or scattered depending on the composition of the object and the wavelength of the light.

Which of the following correctly relates the porosity, permeability and production of a well in an aquifer?

Decreasing porosity and increasing permeability lead to increased production in an aquifer.
Decreasing porosity and decreasing permeability lead to increased production in an aquifer.
Increasing porosity and increasing permeability lead to increased production in an aquifer.
Increasing porosity and decreasing permeability lead to increased production in an aquifer.

100 points

Answers

Answer:

Increasing porosity and increasing permeability lead to increased production in an aquifer.

Explanation:

An aquifer is a body of rock / sediment that holds groundwater.

Porosity affects the amount of water a particular rock type can hold and depends on a couple of different factors such as how water circulates within the soil or ground.

The ability of the ground water to pass through the pore spaces in the rock is described as the rock's permeability.

Therefore, Increasing porosity and permeability will lead to increased production in an aquifer.

Answer:
Increasing porosity and increasing permeability lead to increased production in an aquifer.

True or False
If two unbalanced forces act on an object in opposite directions, the object will move in the direction that the stronger force is acting.

Answers

Answer:

true

Explanation:

If two unbalanced forces act on an object in opposite directions, the object will move in the direction that the stronger force is acting. If two forces act in the same direction on an object, the forces add together and the object experiences a greater force in that direction

True
An object in the opposite direction will act on the strongest force

are exorcisms real and if so does that mean demons are real ???

Answers

Yes They are both real

i would believe so, yes. I mean something would have to posses someone for an exorcism right? And I highly doubt that an angel would do such terrible things to someone. So it would have to be a demon. But if demons or angels aren’t real then the people who got possessed would have to be really really good actors.

Just my thoughts ‍♀️

A rubber ball rolls across a flat floor. After 1 second, it has rolled 2 meters, and after 2 seconds, it has rolled an additional 1.6 meters. From this data, it is clear that the rolling ball has decreased in

Answers

Answer:

It has decreased in speed.

Explanation:

The second time it rolled, it had more time and did not go as far. Meaning it gained friction and decreased in speed.

the speed decreases

PLEASE HELP IMMEDIATELY
1. Based on the context, what does "Jovian" refer to?
2. Before Roemer calculated the speed of light, how fast was the speed of light thought to be?
3. What was the problem with Galileo's experiment to measure the speed of light?
4. Roemer's calculations were not completely correct. Did he calculate too high or too low for the speed of light?

Answers

Jkkkkkkkdkkrndjdjfnenenene

I don’t know the answer for the first question but the answer for the second question is 301000km/s by James Bradley.

And for the third one, Galilio’s problem was that light was very fast to be measured by using his way.

And for the last one I think it was to low

give an example of one living and one non-living thing that uses the force of buoyancy to function. explain how they work.

Answers

Answer:

the biotic one is a human in water and they flaot because of the air in our lungs and the abiotic one is a swimming buoys are filled with foam and foam floats

Explanation:

...

Some examples are a boat sailing on the river, Iceberg floating on water, A person with a life vest floating on water, Ship floating on the ocean, Helium balloon rising in the air. The buoyant force is proportional to the density.

the walls of a room are to be painted. a tin of paint has a total mass of 7000 g in a volume of 5000cm3. the empty tin has a mass of 500g. determine the density.
!please help!

Answers

Answer:

The mass of paint will be "6500 g".

Density= the bigger mass - smaller mass
————————————————
Volume
Density= 7000 - 500
——————
5000cm3
Density= 6500g
———-
5000cm3
Density= 1.3 g/cm3 ;)

This student is listening to MP3 files. What two needs or wants does this wave technology meet?

A. To share music and podcasts easily

B. To hide or erase messages quickly

C. To send and receive messages quickly

D. To store music and podcasts easily

Answers

Answer:

A.To share music and podcast easily

Explanation:

HAVE A GREAT DAT

It’s a. I’m going back up tomorrow ooo

The image shows the cone forecast map of a hurricane.
Four locations (I, II, III, IV) are labeled on the diagram. At which of the four locations is the hurricane predicted to be LEAST intense?

A.) I

B.) II

C.)IV

D.) III

Answers

the answer would be d because because

Maybe a im not sure tho

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In a neutralization reaction, an aqueous solution of an arrhenius acid reacts with an aqueous solution of an arrhenius base to produce:. Plot a graph showing the variation of stopping potential with the frequency of incident radiation for two different photosensitive materials having work Functions [tex]{\omega{1}}[/tex] and [tex]{\omega{2}}[/tex] [tex]{(\omega{1}>\omega{2})}[/tex]. On what factors does the (i) Slope and (ii) intercept of the lines depends? 1. Sunlight is not considered an environmental hazard. Use the excerpt to answer the question.The Y2K fear was the unanticipated outcome of the A. failure of government regulation. B. incompetence of Silicon Valley. C. unexpected foreign competition. D. cost-saving efforts in the 1970s. The quadrilaterals JKLM and PQRS are similar.Find the length x of QR.KQ7M2Z3.6S1.8AX3.6R find the solution set. 7x^2-5x-2=0 Which device performs the function of determining the path that messages should take through internetworks?. In a school,The ratio of the number of boys to the number of girls is 8:5. One quarter of the boys and 1/15 of the girls wear glasses. When another 48 students who wear glasses join the school,the total number of students becomes 216. How many boys wore glasses at first? A spinning satellite begins to unfold two solar panels as shown. How does a satellites ANGULAR MOMENTUM change as its panels extend? A. It drops to zero.B. It decreases. C. It remains constant. D. It increases. A triangle has a base length of 2ac2 and a height 6 centimeters more than the base length. Find the area of the triangle if a = 4 and c = 2. What is the connection between the olive branch in the eagle's talons and America's intentions for the space program?A. The olive branch symbolizes America's plan to learn to grow food in space in order to one day colonize the moon.B. The olive branch symbolizes America's decision to invest economic and human resources into space exploration.C. The olive branch symbolizes America's hope that space exploration will promote international peace and cooperation.D. 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The distance between city B and city C is 54 miles. The distance between city A and city C is 51 miles. What type of triangle is created by the three cities?an acute triangle, because 222 + 542 >512an acute triangle, because 222 + 512 >542an obtuse triangle, because 222 + 542 >512an obtuse triangle, because 222 + 512 >542 Individuals should participate in activities __________ to improve cardiovascular fitness.A.twice a dayB.three to five days a weekC.two to three days a weekD.seven days a week HURRY!! Which of the following is true about population and resources? A. There is no relationship between population and the use of natural resources. B. People in the US use more resources per person than people in less developed countries. C. People in underdeveloped countries use more resources per person than people in the US. D. Each person in the world uses an equal amount of natural resources. What is the measure of USQ Which graph represents f(x)= | x+3|